Why do some people get promoted so quickly while others never do?
I've been working in finance/accounting in London for about three years now, and there's one thing I've genuinely been curious about.
From what I've observed, some of the people who come across as quite difficult, blunt or not particularly easy to work with seem to get promoted relatively quickly, even after only a few years. On the other hand, I've also met genuinely kind, approachable people who've been accountants for 10+ years and have never moved into management.
I know years of experience alone don't entitle anyone to a promotion, and I've seen plenty of younger people who absolutely deserved to become managers.
What I'm really trying to understand is: what actually separates someone who becomes a Finance Manager, Head of Finance, etc., from someone who remains an accountant for their entire career?
Beyond technical ability, what qualities or behaviours do companies actually look for when promoting people into leadership roles? I'd love to hear from people who've been involved in promotion decisions.